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Entry type: Product note Entry ID: 109784018, Entry date: 12/08/2020
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Delivery release: SITOP BUF1200 buffer module (6EP4231-7HB00-0AX0)

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The SITOP BUF1200 buffer module is now released for worldwide delivery from the Nuremberg delivery center.



In addition to the SITOP PSE201U buffer module, the new buffer module is available in the design of the SITOP PSU6200 power supply family. This module is characterized by its high buffer time, its narrow width, and its robust metal enclosure.


Product description

  • Energy storage: Electrolytic capacitors
  • Buffer time:
    • At 40 A load current: 300 ms
    • At 20 A load current: 600 ms
    • At 10 A load current: 1,200 ms
  • The buffer time can be increased by connecting a maximum of 5 SITOP BUF1200 buffer modules in parallel.
  • Can be combined with SITOP 24 V power supplies
  • Can be combined with SITOP RED1200 redundancy modules, SITOP SEL1200/SEL1400 selectivity modules, and all other SITOP add-on modules
  • Robust metal enclosure in narrow width
    (width x height x depth in mm: 70 x 135 x 155)
  • Quick and easy mounting on DIN rail
  • Input voltage range: 24 V – 28 V DC
  • Reverse polarity protection on terminals
  • Push-in terminals
  • Short-circuit strength
  • Charging the buffer module
    • Time until fully charged: Max. 100 s
  • The buffer mode is activated as soon as the voltage falls 1.0 V +/- 0.2 V below the previously applied voltage.
  • LED display to indicate buffer readiness
    • LED lights up continuously        >> Ready for buffering and fully charged
    • LED flashes slowly (at 1 Hz)     >> Ready for buffering but still charging
    • LED flashes rapidly (at 2 Hz)    >> Not ready for buffering (discharged or internal error)


Customer benefits

  • Approximately 80% of the power system faults in Germany last less than 100 ms; these 80% can be bridged by a buffer module without failures.
  • Maintenance-free energy storage
  • Long service life
  • Simple wiring due to parallel connection of power supply and buffer module
  • Replacement and compatibility
  • The SITOP BUF1200 buffer module is newly introduced as an independent device. The PSE201U buffer module will continue to be available. The table lists the main differences

Replacement and compatibility

  • The SITOP BUF1200 buffer module is newly introduced as an independent device. 
  • The PSE201U buffer module will continue to be available. The table lists the main differences

Type

SITOP BUF1200
buffer module

SITOP PSE201U
buffer module

Buffer module, max. 40 A
buffer time at 40 A
max. buffer time

6EP4231-7HB00-0AX0
300 ms
To increase this time, up to 5 BUF1200 can be connected in parallel, otherwise no restrictions

6EP1961-3BA01
200 ms
Max. 8 PSE201U in parallel, but not longer than 10 s

Signaling (LED)3 states via buffer readiness24 V ok (>20.5 V)
Connection methodPush-in terminalsScrew terminals
Dimensions in mm (W x H x D) 70 x 135 x 155 70 x 125 x125


Additional information

 

Article numbers

 

Type

Article number

SITOP BUF1200 buffer module, max. 40 A

6EP4231-7HB00-0AX0

 

 
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